Schistosoma japonicum translationally controlled tumour protein, which is associated with the development of female worms, as a target for control of schistosomiasis

文献类型： 外文期刊

第一作者： Zhong, Haoran

作者： Zhong, Haoran;Ren, Yuqi;Jin, Yamei;Qin, Fanglin;Li, Xiaochun;Hou, Ling;Gu, Shaopeng

作者机构：

关键词： Schistosoma japonicum; Proteomics; Translationally controlled tumour protein; Biological functions; Immune protection

期刊名称：INTERNATIONAL JOURNAL FOR PARASITOLOGY （ 影响因子：4.33； 五年影响因子：4.388 ）

ISSN： 0020-7519

年卷期： 2022 年 52 卷 8 期

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收录情况： SCI

摘要： Schistosomiasis is a globally important helminthic disease of both humans and animals, and is the second most common parasitic disease after malaria. Although praziquantel is extensively used for treatment of parasitic diseases, drug resistance has been reported. Therefore, new drugs and effective vaccines are needed for continuous control of schistosomiasis. Eggs produced by schistosomes are responsible for the occurrence and spread of schistosomiasis. Revealing the reproductive mechanism of schistosomes will help to control this disease. In this study, the proteomic profiles of single-sex infected female worms and bisexual infected mature female worms of Schistosoma japonicum at 18, 21, 23 and 25 days p.i. were identified with isobaric tags for relative quantitation-coupled liquid chromatography-tandem mass spectrometry. Differentially expressed proteins were subsequently used for bioinformatic analysis. Six highly expressed differentially expressed proteins in mature female worms were selected and long-term interference with small interfering RNA (siRNA) was conducted to determine biological functions. SiRNA against S. japonicum translationally controlled tumour protein (SjTCTP) resulted in the most significant effect on the growth and development of MF worms. Sjtctp mRNA expression gradually increased over time with a high level of expression maintained at 25-42 days p.i., while levels were significantly higher in mature female worms than male and SF worms. The subsequent animal immune protection experiments showed that recombinant SjTCTP (rSjTCTP) reduced the number of adults by 44.7% (P < 0.01), average egg burden per gram of liver by 57.94% (P < 0.01), egg hatching rate by 47.57% (P < 0.01), and oviposition of individual females by 43.16%. rSjTCTP induced higher levels of serum IgG, IL-2, and IL10 in mice. Collectively, these results show that SjTCTP is vital to reproduction of female worms and, thus, is a candidate antigen for immune protection.(c) 2022 Australian Society for Parasitology. Published by Elsevier Ltd. All rights reserved.

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